Published 1982
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Calculation of neutron flux and reactivity by perturbation theory at high order
- 1. Rio de Janeiro Univ. (Brazil). Coordenacao dos Programas de Pos-graduacao de Engenharia
- 2. Instituto de Engenharia Nuclear, Rio de Janeiro (Brazil)
Description
A high order pertubation theory is studied, independent of time, applied to integral parameter calculation of a nuclear reactor. A pertubative formulation, based on flux difference technique, which gives directy the reactivity and neutron flux up to the aproximation order required, is presented. As an application of the method, global pertubations represented by fuel temperature variations, are used. Tests were done aiming to verify the relevancy of the approximation order for several intensities of the pertubations considered. (E.G.)
Abstract (Portuguese)
Faz-se um estudo da teoria de perturbacao de altas ordens, independente do tempo, aplicada ao calculo de parametros integrais de um reator nuclear. Apresenta-se uma formulacao perturbativa, baseada na tecnica de diferenca de fluxo, a qual fornece diretamente a reatividade e fluxo de neutrons ate a ordem de aproximacao desejada. Foi utilizada como aplicacao do metodo, perturbacoes globais representadas por variacoes de temperatura do combustivel. Testes foram feitos para se verificar, ate que ordem de aproximacao sao relevantes as contribuicoes de ordens mais altas, para diversas intensidades das perturbacoes consideradas. (E.G.)Files
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Additional details
Additional titles
- Original title (Portuguese)
- Calculo do fluxo e reatividade por teoria de perturbacao a altas ordens
Publishing Information
- Imprint Title
- 3. National Meeting of Reactor Physics
- Imprint Pagination
- 570 p.
- Journal Page Range
- p. 1-10.
- Report number
- INIS-BR--95
Conference
- Title
- 3. National Meeting of Reactor Physics.
- Dates
- 12-14 Dec 1982.
- Place
- Itaipava, RJ (Brazil).
INIS
- Country of Publication
- Brazil
- Country of Input or Organization
- Brazil
- INIS RN
- 14807028
- Subject category
- S22: GENERAL STUDIES OF NUCLEAR REACTORS; S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- FUEL ELEMENTS; NEUTRON FLUX; PERTURBATION THEORY; PWR TYPE REACTORS; REACTIVITY; URANIUM DIOXIDE
- Descriptors DEC
- ACTINIDE COMPOUNDS; CHALCOGENIDES; OXIDES; OXYGEN COMPOUNDS; RADIATION FLUX; REACTOR COMPONENTS; REACTORS; URANIUM COMPOUNDS; URANIUM OXIDES; WATER COOLED REACTORS; WATER MODERATED REACTORS
Optional Information
- Notes
- Imprint:3. Encontro Nacional de Fisica de Reatores.